-2z-11=21

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Solution for -2z-11=21 equation: 


Simplifying
-2z + -11 = 21

Reorder the terms:
-11 + -2z = 21

Solving
-11 + -2z = 21

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '11' to each side of the equation.
-11 + 11 + -2z = 21 + 11

Combine like terms: -11 + 11 = 0
0 + -2z = 21 + 11
-2z = 21 + 11

Combine like terms: 21 + 11 = 32
-2z = 32

Divide each side by '-2'.
z = -16

Simplifying
z = -16

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